SQL Join with >= or between 逻辑

Question

我有两个 table 看起来像这样。

Table 1:

video_ref_raw_media_id | start_seconds | end_seconds | step
ABC001                 | 0:00          | 0:30        | 1
ABC001                 | 0:31          | 1:30        | 2
ABC001                 | 1:31          | 2:30        | 3
ABC002                 | 0:00          | 0:35        | 1
ABC002                 | 0:36          | 1:46        | 2
ABC002                 | 1:47          | 2:44        | 3

Table 2:

video_ref_raw_media_id | start_seconds | end_seconds | label
ABC001                 | 0:10          | 0:11        | green
ABC001                 | 0:15          | 0:16        | black
ABC001                 | 1:45          | 1:46        | green
ABC002                 | 0:20          | 0:21        | red

我想加入 table 1 到 table 2 基于 1 video_ref_raw_media_id 和 2 基于 table 1 中的步骤。唯一的方法这是如果在 table 2 中应用的标签出现在 table 1 中步骤的时间范围内（在 start_seconds 和 end_seconds 之间）。我希望这是有道理的。

我认为 sql 看起来像

Select * from 
"Table 1"
LEFT JOIN "Table 2" on "Table 1".video_ref_raw_media_id="Table 2".video_ref_raw_media_id and (Table2.start_seconds>=Table1.start_seconds and Table2.end_seconds<=Table1.end_seconds)

但是，这不起作用。有什么想法吗？

理想输出：

video_ref_raw_media_id | start_seconds | end_seconds | step | label
ABC001                 | 0:00          | 0:30        | 1    | green
ABC001                 | 0:00          | 0:30        | 1    | black
ABC001                 | 0:31          | 1:30        | 2    | null
ABC001                 | 1:31          | 2:30        | 3    | green
ABC002                 | 0:00          | 0:35        | 1    | red
ABC002                 | 0:36          | 1:46        | 2    | null
ABC002                 | 1:47          | 2:44        | 3    | null

Answer 1

你应该摆脱半列，它会起作用，并转换为 int:

    Select * from 
    "Table 1"
    LEFT JOIN "Table 2" on "Table 1".video_ref_raw_media_id="Table 2".video_ref_raw_media_id 
    and cast((replace(Table2.start_seconds,':','') as int)>=cast(replace(Table1.start_seconds,':','') as int) 
and cast(replace(Table2.end_seconds,':','') as int)<=cast(replace(Table1.end_seconds,':','') as int))

SQL Join with >= or between 逻辑

SQL Join with >= or between logic

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